WRF-Chem with online VPRM [SOLVED]

Any issues with running WRF Chemistry

WRF-Chem with online VPRM [SOLVED]

Postby Georgy Nerobelov » Wed Feb 10, 2021 6:38 am

Dear WRF and WRF-Chem Users!

Is there any guide on how to run WRF-Chem with online VPRM calculations for implementing biogenic CO2 emissions? Recently I have run successfully VPRMpreproc using the WRF-VPRMpreproc manual and useful advices from the scientists of Max Planck Institute for Biogeochemistry. Now I am trying to find out how to implement the VPRMpreproc results (e.g. EVI, LSWI, VEG_FRA, etc.) to run the WRF-Chem with online VPRM calculation. I read through WRF-GHG and WRF-Chem User Guide but found only that the WRF_VPRM_input file has to include all VPRMpreproc fields. In addition, I prepared such file and set it as an auxinput15 in the WRF-Chem namelist.input (as well as corresponding chemistry options e.g. chem_opt=16, emiss_inpt_opt=16, emiss_opt=16). The WRF-Chem log tells that the file was read successfully. However there are no any changes in CO2_BIO filed.

P.S.
I work with the WRF-Chem v.4.1.2

Respectfully,
Georgy.
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Last edited by Georgy Nerobelov on Sun Feb 14, 2021 4:27 pm, edited 1 time in total.
Georgy Nerobelov
 
Posts: 4
Joined: Wed Feb 10, 2021 6:34 am

Re: WRF-Chem with online VPRM

Postby Georgy Nerobelov » Sun Feb 14, 2021 4:26 pm

Hooray!

I suppose that I found the solution. I`ve just run the WRF-Chem with online VPRM calculation. I added the VPRMpreproc fields in one additional file which I corresponded to the auxinput15 in the WRF-Chem namelist.input. The issue was related to the attribute "FieldType" which VPRMpreproc variables don`t have initially. I added the attribute to each of the VPRMpreproc variables and set them to 104 (integer) as it is in case of other WRF-Chem variables. Right after that I run the model and got spatio-temporal variation of CO2_BIO values per each history interval.
Hope this will be helpful in case somebody faces related issue.

Cheers.
Georgy Nerobelov
 
Posts: 4
Joined: Wed Feb 10, 2021 6:34 am


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